bjornjorgensen commented on a change in pull request #34389:
URL: https://github.com/apache/spark/pull/34389#discussion_r737336464
##########
File path: python/pyspark/pandas/groupby.py
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@@ -1199,6 +1200,10 @@ def pandas_apply(pdf: pd.DataFrame, *a: Any, **k: Any)
-> Any:
if should_infer_schema:
# Here we execute with the first 1000 to get the return type.
+ log_advice(
+ "If the type hints is not specified for `grouby.apply`, "
+ "it could be expensive for inferring the type internally."
Review comment:
Can we change "it could be expensive for inferring the type internally."
to "it is expensive to infer the data type internally."
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